HP D2D100, Руководство пользователя

Страница: 65 / 176

• An HP D2D 41xx Target Appliance can run 16 incoming replication jobs concurrently; a Source
Appliance can run four outgoing replication jobs.
Table 3 Fan In, Fan Out and job concurrency rules
HP D2D 250x HP D2D 400x HP D2D 41xx
Appliance Fan Out
Maximum
number of Target
appliances
supported by one
Source appliance
2
4 4
Appliance Fan In
Maximum number
of Source
appliances
supported by one
Target appliance
6 16 24
Library Fan Out
Maximum number
of Target libraries
to which a Source
library may be
mapped
1 1 1
Library Fan In
Maximum number
of Source libraries
to which a Target
library may be
mapped
1 4 4
Concurrent target
jobs
Maximum number
of concurrent
incoming
replication jobs
3 8 16
Concurrent source
jobs
Maximum number
of concurrent
outgoing replication
jobs
1 4 4
Replication deployment strategies
There are many deployment strategies; the following three are perhaps the most typical:
• Active to Passive
• Active to Active
• Many to One
Active to Passive example
In the following example there are two of fi ces, each with an HP D2D Backup System. The HP D2D
Backup System in Of fi ce A is being used by the host server for backup and restore and the libraries that
have been con fi gured on it are being replicated to matching libraries on the HP D2D Backup System in
Of fi ce B. A replication license is required only for the HP D2D Backup System in Of fi ce B. That license
covers all Replication-Target libraries on Appliance B.
D2D Backup System HP D2D2503
65